Harrow.



UNITED STATES Patented April 11, 1905.

PATENT GEEICE.

HARROW.

SPECIFICATION forming part of Lettersl Patent No. 787,004, dated April11, 1905.

' Application filed pri121,1904i Serial No. 204,196. l

To (1J/Z whom, it may cori/cern:

Be it known that we, DAVID SMITH and ZAoI-IRA T. KINDRED, citizens ofthe United States, residing at Overoup, in the county of Conway andState of Arkansas, have invented certain new and useful Improvements inHarlrows, of which the following isa specification, reference being hadtherein to the accompanying drawings.

Our invention relates to improvements in harrows, and more particularlyto expansible liarrows; and it consists in the provision of novel meanswhereby the wings or sections thereof may be readily adjusted relativeto 'one another and retainedin their adjusted position, together withother novel features' to be more particularly pointed out in the fol-`lowing detailed description.

Referring to the accompanying drawings, com prising a part hereof,wherein a preferred embodiment of our invention is disclosed for thepurpose ofV illustration, Figure l is aside elevation. Fig. 2 is atopplan view showing the sections of the harrow adjusted to their innermostposition, and Fig. 3 is a like View showing the sections in an expandedposition.

Referring now more particularly to the drawings, wherein like referencecharacters designate corresponding parts in the several views, A and Adesignate angularly-arranged outer beams for the harrow pivotallyconnected at their forward ends intermediate bridge-- plates B and Cthrough the medium of bolts a.'

D and Dl represent, respectively, bars extending inwardly and rearwardlyfrom the outer beams, said bars being pivotally connected intermediatethe ends of the outer beams by pivots d and al. respectively, andpivandlower surface of the complementary inner beam E. Bars G and G', havingpivotal connection at g g to the inner beams E and E, respectively,intermediate the ends of the latter, extend inwardly and rearwardly andare pivotally connected withY one another at H. The bars Gr and G arerespectively cut away at /L and /L upon their upper andlovver surfacesadjacent their inner pivotal connections in order that said surfaceswill be in alinement With one another. llhe bars D and D' are similarlycut away for the same purpose. H represents the means for locking thesections in adjusted position, and preferably comprises a chainconnected at its forward end to the upper bridge-plate B and havinglinks j arranged to engage, respectively, hooks J and J', extendingupwardly from the respective bars -D and G. A vertically-extending plateI is arranged intermediate of and is secured at its upper and lower endsto the upperand lower bridge-plates B C. Said vertically-extending platehas a plurality of aperturesz'y arranged at different elevations,whereby any suitable draft attachment (not shown) may khave anadjustable connection therewith.

The operation is obvious. When it is desiredV to adjust the relativepositions ofthe beams, the locking-chain H isdisengaged from the hooks JJ", when the b ams upon both the inner and outer wings Wi l be freetoswng inwardly or outwardly from their respective pivot-points. Whenthe desired angularity of the beams is obtained, the locking-chain Hwill again engage the hooks and will retain the parts in their adjustedposition while the operation of the harrow is proceeded With.

Where we in the claims call for a single connection between the innerend of one of the inner beams and the outer beams, it is to be notedthat we intend these claims to be broad enough to include structuresWhere the inner beams are connected to the outer beams by a singleconnection only, whether that connection be direct from the innertotheouter beams or indirect through aconnection between the inner beams andbetween one of said connected inner beams and said outer beams.

It will be noted that many minor changes may be made in the details ofthe construction of our device without in the least departing from thespirit of the invention.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. In a machine of the character described, the combination with outerbeams, of laterally-adjustable inner beams having a single pivotalconnection to the outer beams.

2. In a machine of the character described, the combination with outerbeams, of complementary laterally-adjustable inner beams connectedtogether at their forward ends and having a single pivotal connection tothe outer beams.

3. In a machine of the character described, the combination with outerbeams, of inner beams connected together, and a pivotal connectionbetween one only of said inner beams and one of the outer beams.

4. In a machine of the character described, the combination with outerbeams, of inner beams pivoted together, and a supplemental pivotalconnection between one only of said inner beams and one of the outerbeams whereby the inner beams may swing laterally relatively to theouter beams, and means for retaining the beams in adjusted position.

5. In a machine of the character described, the combination with outerbeams pivoted together at their forward ends, of inner beams pivotallyconnected together, and a supplemental pivotal connection between oneonly of said inner beams and said outer beams.

6. In a machine of thecharacter described, the combination with pivotedouter beams, of inner beams pivoted together, one only of said innerbeams having a single pivotal connection with said outer beams.

7. The combination with outer beams pivotally connected at their forwardends, inner beams pivotally connected to one another, a single pivotalconnection between one only of the inner and outer beams and a singlelocking member common to both the inner and outer beams.

8. In a machine of the character described, the combination of outerbeams pivoted together at their forward ends, rods extending inwardlyand rearwardly therefrom, said rods adjacent theirl outer ends beingpivotally connected thereto intermediate the ends of the latter, andhaving a pivotal connection with one another adjacent their inner ends,inner beams pivoted together at their forward ends, rods extendinginwardly and rearwardly therefrom, said rods adjacent their outer endsbeing pivoted thereto intermediate the ends of latter, and having apivotal connection with one another adjacent their inner ends, innerbeams pivoted together at their forward ends, rods extending 4inwardlyand rearwardly therefrom, said rods adjacent their outer ends beingpivoted thereto intermediate the ends of the latter and having a pivotalconnection with one another adjacent their inner ends, and a pivotalconnection between the inner and outer beams.

10. rThe combination with outer beams pivotally connected at theirforward ends, inner beams pivotally connected to one another, aconnection between one only of said inner and outer beams, and a singlelocking means extending longitudinally of and adapted to be detachablyconnected to both the inner and outer beams.

11. The combination with outer beams pivotally connected attheir forwardand rear ends, inner beams pivotally connected to one another at theirforward and rear ends, a connection between the inner and outer beams,and a single locking means operatively associated with both connectionsat the rear of said inner and outer beams.

l2. In a machine of the character described, the combination of outerbeams pivoted together, inner beams pivoted together, a connectionbetween one of the inner and outer beams, and a single exible lockingmember operatively associated with both.

13. In a machine of the character described the combination of outerbeams adj ustabl y connected with one another, inner beams adjustablyconnected with one another, and an adjustable connection between theforward terminal of one only of the inner beams and one of the outerbeams intermediate the ends of the latter.

14. In a machine of the character described the combination of outerbeams pivotally connected at their forward ends, inner beams pivotallyconnected with one another, one of said inner beams having an elongatedextension pivoted to one only of the outer beams intermediate the endsof the latter.

In testimony whereof we aiiix our signatures in presence of twowitnesses.

DAVID SM'I'll-I. ZACHRA T. Kl N DREI Witnesses:

J. M. CoUR'rNnY, J. M. BRYANT.

lOO

